SLSQ-20B-30P 20.0 mm Dia. x 31.0 mm FL; Double-Convex Lens Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 31 mm
- BFL
- 29 mm
- R1
- 27.6 mm
- R2
- -27.6 mm
Material
- Name
- Fused Silica
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.460077010624967
- λ
- 546.1 nm
- B1
- 0.6961663
- C1
- 0.00467914825849 μm2
- B2
- 0.4079426
- C2
- 0.013512063073959999 μm2
- B3
- 0.8974794
- C3
- 97.934002537921 μm2
SLSQ-20B-30P 20.0 mm Dia. x 31.0 mm FL; Double-Convex Lens Uncoated
The SLSQ-20B-30P is a high-quality double-convex lens offered by OptoSigma, a leading vendor in the optical industry. This lens, with a diameter of 20.0 mm and a focal length of 31.0 mm, is designed for use in a wide range of optical applications.
The lens is made of fused silica, a material known for its excellent optical properties, including high transparency and resistance to thermal shock. The base shape of the lens is circular, and it features a double-convex geometry, with radii of curvature of 27.6 mm for the first surface and -27.6 mm for the second surface. This geometry results in a back focal length of 29.0 mm.
The lens is uncoated, which means it does not have any anti-reflective coatings. While this may result in higher reflective losses, it also means that the lens is less susceptible to damage and contamination. The edge thickness of the lens is 2.0 mm, and the center thickness is 5.8 mm.
The SLSQ-20B-30P is designed for use at a wavelength of 546.1 nm. It is available for purchase through the OptoSigma website, where it is listed as being in stock.